抄録
The nutritional status of vitamin E was examined by determination of α-tocopherol levels in plasma, red blood cells (RBCs), platelets (PLT), mononuclear cells (MN), and buccal mucosal cells (BMC) in elderly Japanese subjects in an institution at Kyoto, as compared with those in the young adults. Vitamin A status was examined only by plsama levels. α-Tocopherol levels in plasma, RBCs, RLT, and BMC did not differ between elderly and young adults, while those in MN were lower in the elderly. The daily vitamin E intake of the elderly subjects in this institution was below the recommended dietary allowance for the Japanese population. The vitamin A status did not differ between elderly and young adults on the basis of the plasma retinol levels. The daily intake of retinol (as retinol equivalent) by the elderly subjects was also lower than the recommendation. After single administration of a multi-vitamin preparation, tocopherol levels were increased in PLT, MN, and BMC in both elderly and young subjects. Plasma α-tocopherol and retinol levels in elderly rather decreased after administration.
